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Ti(C,N)계 써메트의 유심구조 형성거동

Formation of a Core/Rim Structure in Ti(C,N)-based Cermets

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참고문헌

주제분류금속공학

초록

Abstract

Model experiment was introduced to obtain the formation of a core/rim structure by only liquid phase reaction in Ti(C,N)-based cermet alloys. Infiltrated Ti(C,N)-Ni, Mo2C-Ni, and TaC-Ni cermets were bonded to sandwiched specimen by heat treatment 1450oC for 5hr. With nitrogen addition, both (Ti,Mo) (C,N) and (Ti,Ta) (C,N) rim structure was nucleated around corner of cuboidal Ti(C,N) core. However, equilibrium shapes of (Ti,Mo) (C,N) and (Ti,Ta) (C,N) rim were different possibly due to the effect of interface energy. The core/rim and rim/ binder interfaces were parallel to each other with TaC addition, while rotated to each other with Mo2C addition.

참고문헌 (3)

  1. "Int. J. Refractory Met. Hard Mater. 33", 1983
  2. "J. Hard Mater. 4", 1993
  3. "Transition Metal Carbides and Nitrides" (1971), Inc.

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